Using a Starbucks calories calculator offers many benefits, especially for health-conscious people. One of the biggest benefits is control. You are no longer guessing what you are drinking. You know exactly how many calories are in your cup. This tool is very helpful for weight management. If you are trying to lose weight or maintain your weight, tracking calories is important. Starbucks drinks can sometimes contain more calories than a full meal. A calculator helps you avoid such surprises.